...
首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Theoretical studies on vibrational spectra of some mixed carbonyl-halide complexes of Osmium(II)
【24h】

Theoretical studies on vibrational spectra of some mixed carbonyl-halide complexes of Osmium(II)

机译:mixed(Ⅱ)混合羰基卤化物配合物振动光谱的理论研究

获取原文
获取原文并翻译 | 示例
           

摘要

The vibrational spectra Of OS(CO)(6)(2+) and some of its mixed carbonyl-halide complexes, cis-Os(CO)(2)X-4(2-), fac-Os(CO)(3)X-3(-) and OS(CO)(5)X+ (X = F, Cl, Br and I), have been systematically investigated by ab initio RHF and density functional B3LYP methods with LanL2DZ and SDD basis sets. The calculated vibrational frequencies of complexes Os(CO)(6)(2+), cis-Os(CO)(2)X-4(2-) and fac-Os(CO)(3)X-3(-) are evaluated via comparison with the experimental values. In infrared frequency region, the C-O stretching vibrational frequencies calculated at B3LYP level with two basis sets are in good agreement with the observed values with deviations less than 5%. In the far-infrared region, the B3LYP/SDD method achieved the best results with deviations less than 9% for Os-X stretching and less than 8% for Os-C stretching vibrational frequencies. The vibrational frequencies for Os(CO)(5)X+ that have not been experimentally reported were predicted. (c) 2005 Elsevier B.V. All rights reserved.
机译:OS(CO)(6)(2+)及其一些混合的羰基卤化物配合物cis-Os(CO)(2)X-4(2-),fac-Os(CO)(3)的振动光谱X-3(-)和OS(CO)(5)X +(X = F,Cl,Br和I)已通过从头算RHF和具有LanL2DZ和SDD基集的密度泛函B3LYP方法进行了系统研究。复合物Os(CO)(6)(2 +),cis-Os(CO)(2)X-4(2-)和fac-Os(CO)(3)X-3(-)的计算振动频率通过与实验值比较来评估。在红外频率范围内,在B3LYP水平下使用两个基集计算的C-O拉伸振动频率与观测值吻合良好,偏差小于5%。在远红外区域,B3LYP / SDD方法获得了最佳结果,对于Os-X拉伸,偏差小于9%,对于Os-C拉伸振动频率,偏差小于8%。预测的Os(CO)(5)X +的振动频率尚未进行实验报道。 (c)2005 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号